GodSnow - 7075 Aluminum 20x M12 x 1.5mm Thread Pitch Ribbed Extended Closed End Lug Nuts Blue These are Aftermarket Tuner Lug Nuts. Which are made for Aftermarket Wheels. Not Safe for OEM Wheels. Made of 7075 CNC Machined Aluminum Material. Closed End Ribbed Extended Style Tuner Lug Nuts Please DO NOT use impact gun/ Wrench to Mount Lug Nuts. It will scratch or Damage Them. Please use a Torque Wrench to Torque Each Lug Nut to Proper Specs Before starting to Drive. If You are Unsure Of your Wheel Stud Thread Pitch. Please check your Owners Manual before Purchase.